C#使用Aspose.Cells导出Excel简单实现

首先，需要添加引用Aspose.Cells.dll，官网下载地址：http://downloads.aspose.com/cells/net

将DataTable导出Xlsx格式的文件下载（网页输出）：

 1 /// <summary>
 2 /// 导出Excel表格
 3 /// </summary>
 4 /// <param name="list">数据集合</param>
 5 /// <param name="header">数据表头</param>
 6 /// <returns></returns>
 7 public void ExportExcel(DataTable dt, string[] header)
 8 {
 9     Workbook wb = new Workbook(FileFormatType.Xlsx);
10     try
11     {
12         Worksheet sheet = wb.Worksheets[0];
13         sheet.Name = "MO上行查询结果";
14         if (dt.Rows.Count <= 0)
15         {
16             System.Web.HttpContext.Current.Response.Write("<script>alert('没有检测到需要导出数据!');</script>");
17             return;
18         }
19         // 为单元格添加样式
20         Aspose.Cells.Style style = wb.CreateStyle();
21         style.HorizontalAlignment = Aspose.Cells.TextAlignmentType.Center;  //设置居中
22         style.Font.Size = 12;//文字大小
23         style.Font.IsBold = true;//粗体
24         style.HorizontalAlignment = TextAlignmentType.Center;//文字居中
25 
26         int rowIndex = 0;
27         for (int i = 0; i < header.Length; i++)
28         {
29             sheet.Cells[rowIndex, i].PutValue(header[i]);
30             sheet.Cells[rowIndex, i].SetStyle(style);
31             sheet.Cells.SetColumnWidth(i, 20);//设置宽度
32         }
33         for (int i = 0; i < dt.Rows.Count; i++)//遍历DataTable行
34         {
35             sheet.Cells[i + 1, 0].PutValue(dt.Rows[i]["SENDER"].ToString());
36             sheet.Cells[i + 1, 1].PutValue(dt.Rows[i]["SENDCONTENT"].ToString());
37             sheet.Cells[i + 1, 2].PutValue("");
38             sheet.Cells[i + 1, 3].PutValue(dt.Rows[i]["RECDATE"].ToString());
39             sheet.Cells[i + 1, 4].PutValue(dt.Rows[i]["sn"].ToString());
40         }
41     }
42     catch (Exception e)
43     {
44         System.Web.HttpContext.Current.Response.Write("<script>alert('导出异常:" + e.Message + "!');</script>");
45     }
46     #region 输出到Excel
47     using (MemoryStream ms = new MemoryStream())
48     {
49 
50         wb.Save(ms, new OoxmlSaveOptions(SaveFormat.Xlsx));//默认支持xls版，需要修改指定版本
51         System.Web.HttpContext.Current.Response.AddHeader("Content-Disposition", string.Format("attachment; filename={0}.xlsx", DateTime.Now.ToString("yyyyMMddHHmmssfff")));
52         System.Web.HttpContext.Current.Response.ContentType = "application/vnd.ms-excel";
53         System.Web.HttpContext.Current.Response.BinaryWrite(ms.ToArray());
54         wb = null;
55         System.Web.HttpContext.Current.Response.End();
56     }
57     #endregion
58 }

Aspose.Cells.dll 下载地址：http://pan.baidu.com/s/1o8TRXDg

其它相关参考：

https://my.oschina.net/u/876556/blog/98801

http://www.cnblogs.com/top5/archive/2010/02/16/1668801.html

http://www.cnblogs.com/springyangwc/archive/2011/08/12/2136498.html